【单选题】

The nurse evaluates the client's understanding of myasthenia gravis. The nurse would judge that the client has formed a realistic concept of her condition when she says
A．"By taking medication and pacing activities, I will live longer, but ultimately the disease will cause my death. "

B．"By taking medication and pacing activities, my fatigue will be relieved, but I should expect occasional periods of muscle weakness. "
C．"By taking medication and pacing activities, my symptoms will be controlled and eventually the disease will be cured. "
D．"By taking medication and pacing activities, I should be able to control the disease and enjoy a healthy lifestyle. "